Steam-boiler.



No. 742,335.. PATENTED OCT. 27, 1903. I

' P. X. KOMAREK.

STEAM BOILER.

APPLIOATIION FILED MAY 24. 1902.

no MODEL.

WITNESSES:

UNITED STATES Patented October 27, 1903.

PATENT OFFICE.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No: 742,335, dated October27, 1903. Application filed May 24, 1902. Serial No.108,861. (N0 model.)

To all whom it may concern:

Be it known that LFRANZ XAVER K0- MAREK, a subject of the Emperor ofAustria- Hungary, residing at Vienna, Austria-Hungary, have invented newand useful Improvements in Steam-Boilers, of which the following is aspecification.

The present invention has reference to improvements in steam-boilers,andrelates more especially to sectional steam-boilers for high pressurewith superheater, especially for use in automobiles and the like; andthe object of the invention is to provide a boiler of the type indicatedwhich is of great efficiency, yet shows relatively small dimensions.

In order to make my invention more readily understood, I will describeit with reference to the accompanying sheets of drawings, of which-Figure 1 represents a vertical sectional elevation of my improved boileron line 1 1 of Fig. 3. Fig. 2is a vertical sectional elevation throughFig. 1. Fig. 3 is a horizontal sectional elevation on line 2 2 of Fig.2, and Fig. is a horizontal section through Fig. 2 on line 3 3.

The boiler essentially consists of one or more coilsof pipe A,arrangedas tubularbodies concentrically within one another, the outer coilforming the wall of the fire-box of the water and steam collector B andof the superheater 0. The coils A are made up of separate sections andare formed of thick-walled material with relatively small diameter. Eachsection communicates directly by its two coil ends'with the water andsteam collector B. Instead of using only one such collector two or moremay bemade use of. By this arrangement of directly-communicatingsections there is assured a regular active circulation in each section.A boiling empty of the coils therefore is excluded, and with alwayssufficient supply of water the generation of steam is enhanced. In theupper section or sections the steam at first is dried and then highlysuperheated to such an extent that besides obtaining an extremely highpotential of force the escaping steam of the motor will be colorless.Each section consists of but one length of pipe, so that no joints occurwhich could come in contact with the fire.

The collector B and the coils are surrounded by a casing G. Thus thecollector is to a great extent kept heated; but the joints between theseveral sections of coil and the collector are isolated from the directeffects of the heat by the fact that the coils are separated from thecollector and said joints by an internal casing H, surrounding thecoils. At the bottom the outer tubular body of coils is abruptlyextended outwardly relatively to that portion thereof which is above it,so as to form a stoking-aperture I. J is a hinged door on casing G,covering said stoking-aperture.

.What I claim, and desire to secure by Letters Patent, is-

1. The combination of a tubular body consisting of a coil or coils, awater-supply pipe communicating with said body, a steam-dispensing pipealso communicating with said body, and a fuel-support disposed undersaid body, the coils at the bottom portion of said body being extendedabruptly laterally to form a stoking-aperture, substantially asdescribed.

2. The combination of a tubular boiler comprising a series of coils, awater-supply pipe and a steam-dispensing pipe communicating with saidboiler, and a fuel-support disposed under and close to said boiler, someof said coils being extended abruptlylaterally to form astoking-aperture and the coils from said aperture down to the gratebeing combined with the "grate to form a fuel-receiving space,substantially as described.

In Witness whereof I have hereunto set my hand in presence of twowitnesses.

FRANZ XAVER KOMAREK.

Witnesses:

ALVESTO S. HOGUE, HUGO A. FUGGER.

